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  <section id="language">
<span id="prop_sf:LANGUAGE"></span><h1>LANGUAGE<a class="headerlink" href="#language" title="Link to this heading">¶</a></h1>
<p>Specify the programming language in which a source file is written.</p>
<p>A property that can be set to indicate what programming language the
source file is.  If it is not set the language is determined based on
the file extension.  Typical values are <code class="docutils literal notranslate"><span class="pre">CXX</span></code> (i.e.  C++), <code class="docutils literal notranslate"><span class="pre">C</span></code>,
<code class="docutils literal notranslate"><span class="pre">CSharp</span></code>, <code class="docutils literal notranslate"><span class="pre">CUDA</span></code>, <code class="docutils literal notranslate"><span class="pre">Fortran</span></code>, <code class="docutils literal notranslate"><span class="pre">HIP</span></code>, <code class="docutils literal notranslate"><span class="pre">ISPC</span></code>, and <code class="docutils literal notranslate"><span class="pre">ASM</span></code>.  Setting
this property for a file means this file will be compiled, unless
<span class="target" id="index-0-prop_sf:HEADER_FILE_ONLY"></span><a class="reference internal" href="HEADER_FILE_ONLY.html#prop_sf:HEADER_FILE_ONLY" title="HEADER_FILE_ONLY"><code class="xref cmake cmake-prop_sf docutils literal notranslate"><span class="pre">HEADER_FILE_ONLY</span></code></a> is set.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 3.20: </span>Setting this property causes the source file to be compiled as the
specified language, using explicit flags if possible.  Previously it
only caused the specified language's compiler to be used.
See policy <span class="target" id="index-0-policy:CMP0119"></span><a class="reference internal" href="../policy/CMP0119.html#policy:CMP0119" title="CMP0119"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0119</span></code></a>.</p>
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